Standard: JIS B 1360
Available sizes: 4 to 8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 1 | 0.75 | 5 | 1.5 | 0.5 | 3 | 5.5 | 8.5 | 2 | 2.5 | 14.4 |
| 5 | 1.6 | 1.2 | 8 | 2.4 | 0.8 | 4.8 | 7.8 | 12.6 |
Standard corrosion protection for indoor and mild outdoor environments.
Salt spray: 96–200 hours | RoHS compliant (trivalent chromium)
High-performance coating for automotive, marine, and harsh environments.
Salt spray: 720–1500 hours | Recommended for grade 8.8+
Heavy-duty protection for structural and outdoor applications.
Salt spray: 500–1000 hours | Thread tolerance adjustment required
Note for high-strength fasteners (Grade 10.9, 12.9): Electroplating processes require hydrogen embrittlement relief baking (minimum 4 hours at 200°C within 4 hours of plating). Contact our engineering team for grade-specific plating recommendations.
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
| 3.2 |
| 4 |
| 21.1 |
| 6 | 1.8 | 1.35 | 10.3 | 4.2 | 0.9 | 5.4 | 11.2 | 18.8 | 3.6 | 6 | 29.3 |
| 8 | 2 | 1.5 | 11.7 | 5 | 1 | 6 | 13 | 21.9 | 4 | 7 | 33.6 |
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